package cn.wl.gulimall.order.config;

import com.rabbitmq.client.ReturnCallback;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.connection.Connection;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import javax.annotation.PostConstruct;

@Configuration
public class MyRabbitConfig {

//    @Autowired 报错循环依赖
    RabbitTemplate rabbitTemplate;
//    public MyRabbitConfig(RabbitTemplate rabbitTemplate){
//        this.rabbitTemplate=rabbitTemplate;
//        initRabbitTemplate();
//    }
    @Primary
    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        this.rabbitTemplate = rabbitTemplate;
        rabbitTemplate.setMessageConverter(messageConverter());
        initRabbitTemplate();
        return  rabbitTemplate;
    }

    //使用json序列化机制，进行消息转换
    @Bean
    public MessageConverter messageConverter(){
        return new Jackson2JsonMessageConverter();
    }

    /**
     * 定制RabbitTemplate
     * 1、spring.rabbitmq.publisher
     */
//    @PostConstruct
    public void initRabbitTemplate(){
        //设置确认回调
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            /**
             *
             * @param correlationData 当前消息的唯一关联数据()
             * @param ack   消息是否成功收到
             * @param cause 失败的原因
             */
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                System.out.println("confirm...CorrelationData["+correlationData+"]===>ack["+ack+"]===>cause["+cause+"]");
            }
        });
        //设置消息抵达队列的确认回调
        rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback(){
            //只要消息没有投递到指定的队列，就触发这个失败回调

            /**
             *只要消息没有投递给指定的队列，就触发这个失败回调
             * @param message 投递失败的消息详细信息
             * @param replyCode 回复的状态码
             * @param replyText 回复的文本内容
             * @param exchange 当时这个消息发给那个交换机
             * @param routingKey 当时这个消息用那个路由键
             */
            @Override
            public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
                System.out.println("Fail Message["+message+"]==>replyCode["+replyCode+"]===>exchage["+exchange+"]===>routingKey["+routingKey+"]");
            }
        });
    }
}
